Peugeot 207 Catalytic Converter

The catalytic converter in the Peugeot 207 is a key component of the exhaust system designed to reduce harmful emissions. It transforms toxic gases such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) into less harmful substances using precious metals like platinum, rhodium, and palladium through a chemical process called catalysis. This process requires temperatures above 400°C to operate effectively, so performance may be reduced during cold starts or short trips.

Replacement catalytic converters are available for a range of Peugeot 207 engines with different Euro emission standards. Common compatible engines include:

• 1.6 HDi (92 hp) Euro 5
• 1.6 HDi 110 (112 hp) Euro 5
• 1.6 THP 155 (156 hp) Euro 5
• 1.4 Petrol (2006-2010) Euro 4
• 1.6 THP 150 Euro 4

Always check specific engine codes and vehicle VIN to select the exact product suited for your Peugeot 207 model and configuration.

Common indications that a Peugeot 207 catalytic converter needs replacement include:

• Decreased vehicle performance or power loss
• Illumination of the check engine light related to emissions
• Failed emissions test or MOT check due to high exhaust pollutants
• Physical damage or internal clogging of the catalytic converter
• Specific known issues on engines like the 1.6 VTi, which are prone to catalytic converter fragility

A professional mechanic should diagnose the issue to confirm the need for replacement.

Replacing the Peugeot 207 catalytic converter is a complex process which generally includes these steps:

• Safely raise and support the vehicle to gain access underneath.
• Remove heat shields protecting the exhaust components.
• Unbolt the exhaust manifold flange nuts and catalytic converter mounting nuts (some are hard to access, especially on turbo engines).
• Disconnect oxygen sensors (lambda sensors), noting that the upstream sensor may require complete removal of parts for access.
• Remove the catalytic converter and prepare for the new part installation, including replacing gaskets and seals.
• Install the new catalytic converter, tighten bolts to specified torque (around 40 Nm), and reconnect sensors.
• Perform ECU re-learning or reset procedures via diagnostic tools such as Diagbox to optimize engine and emission system performance post-installation.

For a novice, this can take around 3 hours; for experienced mechanics, about 45 minutes.

Some alternatives and modifications include:

• Cleaning the catalytic converter with specialized additives like BAC 101 to reduce soot buildup and improve emissions performance during inspections.
• Using a stainless steel turbo downpipe replacement for some petrol engines (e.g., 1.6 THP 150 hp) that removes the catalytic converter, although this is illegal on public roads in many regions and causes emission non-compliance.
• Recycling and selling scrap catalytic converters for their precious metal content, though this does not restore vehicle function.

Note that removing or disabling the catalytic converter can lead to legal and inspection penalties.

High-quality, brand-new Peugeot 207 catalytic converters compliant with manufacturer specifications and European standards can be sourced from specialist suppliers providing original equipment parts. Features to look for include:

• Manufactured with stainless steel (e.g., INOX 409) for durability
• High-performance ceramic monoliths with thin-layer coatings of rare metals for superior efficiency
• Certified compliance with Euro emission standards and E24-103R homologation
• Warranty coverage (commonly 3 years or up to 100,000 km)

Ensure the product matches your vehicle's engine size, power, and emission standard by using VIN compatibility checks. Professional installation is recommended for best results and to maintain warranty coverage.

When purchasing a new Peugeot 207 catalytic converter, consider these key warranty and return policies:

• Many suppliers offer a 3-year warranty limited to use under 100,000 kilometers from date of receipt.
• The warranty requires professional installation in a garage specialized in exhaust system replacement, including replacing associated gaskets and sensors where necessary.
• Returns are often accepted only for unused, original-packaged products within 30 days; used or fitted parts are usually non-returnable.
• Proper maintenance and adherence to manufacturer instructions (correct fuel type, engine care, no towing starts) is essential to maintain warranty validity.

Check the specific terms with your supplier to ensure compliance and protection.

Choosing the correct catalytic converter involves several important steps to achieve optimal performance and regulatory compliance:

• Identify your vehicle’s exact engine type, power output, year of manufacture, and emission standard (Euro 4, Euro 5, etc.)
• Use the Vehicle Identification Number (VIN) to confirm compatible parts and sensor positions
• Select a catalytic converter that meets or exceeds original equipment manufacturer specifications and has the correct sensor fittings
• Consider purchasing from suppliers offering technical support, installation instructions, and warranty coverage
• Consult diagnostic software (e.g., Diagbox) for ECU relearning or emissions system resets post-installation

If you are unsure, seek advice from a qualified mechanic or exhaust system specialist to ensure the best fit and performance for your Peugeot 207.